examples/csound_floss_manual/01-GS-05-c.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "neither-cause",
   "metadata": {},
   "outputs": [],
   "source": [
    "import draw2Svg as dw"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "expected-amendment",
   "metadata": {},
   "outputs": [
    {
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       "<path d=\"M44.642857142857146,40.0 L460.3571428571429,339.0\" stroke=\"black\" stroke-width=\"2\" />\n",
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       "<text x=\"269.8214285714286\" y=\"40.0\" font-size=\"20\" text-anchor=\"middle\" font-family=\"courier\" font-weight=\"bold\" dy=\"0em\">Pitches_1</text>\n",
       "<text x=\"754.8214285714287\" y=\"40.0\" font-size=\"20\" text-anchor=\"middle\" font-family=\"courier\" font-weight=\"bold\" dy=\"0em\">Pitches_2</text>\n",
       "<path d=\"M44.642857142857146,189.5 L252.50000000000003,189.5 L252.50000000000003,359.0\" fill=\"none\" stroke=\"gray\" stroke-dasharray=\"3 3\" />\n",
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       "</svg>"
      ],
      "text/plain": [
       "<draw2Svg.drawing.Drawing at 0x7fc5fdaf45e0>"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "w,h = 1000,400\n",
    "d = dw.Drawing(w,h)\n",
    "\n",
    "def grid(num,length=800,margin_1=40,margin_2=41):\n",
    "    \"\"\"returns a list of num grid values between\n",
    "    margin_1 and height-margin_2 which are subtracted from length.\n",
    "    for horizontal, it counts from left to right\n",
    "    for vertical, it counts from top to bottom\"\"\"\n",
    "    real_length = length - margin_1 - margin_2\n",
    "    grid_step = real_length / (num-1)\n",
    "    return [i*grid_step+margin_1 for i in range(num)]\n",
    "\n",
    "def tick(x,y,leng=-5,**args):\n",
    "    \"\"\"axes tick\n",
    "    leng negative means from x,y to left\n",
    "    leng positive menas to bottom\"\"\"\n",
    "    if leng<0: d.append(dw.Line(x,y,x+leng,y,**args))\n",
    "    else: d.append(dw.Line(x,y,x,y+leng,**args))\n",
    "\n",
    "def scale(inval,inmin,inmax,outmin,outmax):\n",
    "    \"\"\"scales inval which is between inmin and inmax\n",
    "    to the range between outmin and outmax\"\"\"\n",
    "    return (inval-inmin)*((outmax-outmin)/(inmax-inmin))+outmin\n",
    "\n",
    "# grids and y range\n",
    "x_grid = grid(29,w,10,20)\n",
    "y_grid = grid(5,h)\n",
    "yrange_max = y_grid[0]\n",
    "yrange_min = y_grid[4]-20\n",
    "def Midi(midinn):\n",
    "    \"\"\"returns the y position for a midi note number input\"\"\"\n",
    "    return scale(midinn,57,81,yrange_min,yrange_max)\n",
    "\n",
    "# axes\n",
    "zero_left = x_grid[1],y_grid[4]\n",
    "zero_right = x_grid[15],y_grid[4]\n",
    "d.append(dw.Line(*zero_left,x_grid[14],y_grid[4],stroke='black'))\n",
    "d.append(dw.Line(*zero_left,x_grid[1],y_grid[0]-10,stroke='black'))\n",
    "d.append(dw.Line(*zero_right,w,y_grid[4],stroke='black'))\n",
    "d.append(dw.Line(*zero_right,x_grid[15],y_grid[0]-10,stroke='black'))\n",
    "\n",
    "# ticks and text for axes\n",
    "size = 14\n",
    "y_text = [i for i in range(81,56,-1)]\n",
    "x_text = ['%d'%i for i in range(13)]\n",
    "for i,num in enumerate(y_text):\n",
    "    y = Midi(num)\n",
    "    tick(x_grid[1],y,stroke='black')\n",
    "    tick(x_grid[15],y,stroke='black')\n",
    "    if i%3==0:\n",
    "        d.append(dw.Text('%d'%num,size,x_grid[1]-7,y-1,text_anchor='end',valign='middle'))\n",
    "        d.append(dw.Text('%d'%num,size,x_grid[15]-7,y-1,text_anchor='end',valign='middle'))\n",
    "for i,num in enumerate(x_text):\n",
    "    tick(x_grid[i+1],y_grid[4],5,stroke='black')\n",
    "    d.append(dw.Text(num,size,x_grid[i+1],y_grid[4]+5,text_anchor='middle',valign='top'))\n",
    "    tick(x_grid[i+15],y_grid[4],5,stroke='black')\n",
    "    d.append(dw.Text(num,size,x_grid[i+15],y_grid[4]+5,text_anchor='middle',valign='top'))\n",
    "d.append(dw.Text('MIDI note',size,x_grid[1]-3,y_grid[0]-20,text_anchor='middle'))\n",
    "d.append(dw.Text('MIDI note',size,x_grid[15]-3,y_grid[0]-20,text_anchor='middle'))\n",
    "d.append(dw.Text('sec',size,x_grid[14]-15,y_grid[4]+5,valign='top'))\n",
    "d.append(dw.Text('sec',size,x_grid[28]-15,y_grid[4]+5,valign='top'))\n",
    "\n",
    "# points\n",
    "pch1 = [i for i in range(81,56,-2)]\n",
    "pch2 = [81,79.88,78.69,77.41,76.02,74.51,72.86,71.04,69,66.69,64.02,60.86,57]\n",
    "psiz = 3\n",
    "xfreqs1 = []\n",
    "yfreqs1 = []\n",
    "tsiz = 10\n",
    "for i in range(13):\n",
    "    y = Midi(pch1[i])\n",
    "    d.append(dw.Circle(x_grid[i+1],y,psiz))\n",
    "    d.append(dw.Text('%d'%pch1[i],tsiz,x_grid[i+1]+5,y-3))\n",
    "    y = Midi(pch2[i])\n",
    "    d.append(dw.Circle(x_grid[i+15],y,psiz))\n",
    "    d.append(dw.Text('%.2f'%pch2[i],tsiz,x_grid[i+15]+5,y-3))\n",
    "\n",
    "# line for pch1\n",
    "d.append(dw.Line(x_grid[1],Midi(81),x_grid[13],Midi(57),stroke='black',stroke_width=2))\n",
    "\n",
    "# curve for pch2\n",
    "#dx = xfreqs1[1] - xfreqs1[0]\n",
    "p = dw.Path(stroke='black',fill='none',stroke_width=2)\n",
    "p.M(x_grid[15],Midi(81))\n",
    "dx = x_grid[1]-x_grid[0]\n",
    "for i in range(12):\n",
    "    dy = Midi(pch2[i+1]) - Midi(pch2[i])\n",
    "    p.Q(x_grid[i+15]+dx/2,Midi(pch2[i])+dy*.45,x_grid[i+16],Midi(pch2[i+1]))\n",
    "d.append(p)\n",
    "\n",
    "# final text\n",
    "big = 20\n",
    "d.append(dw.Text('Pitches_1',big,x_grid[1]+(x_grid[14]-x_grid[1])/2,y_grid[0],\n",
    "                 text_anchor='middle',font_family='courier',font_weight='bold'))\n",
    "d.append(dw.Text('Pitches_2',big,x_grid[15]+(x_grid[28]-x_grid[15])/2,y_grid[0],\n",
    "                 text_anchor='middle',font_family='courier',font_weight='bold'))\n",
    "\n",
    "# dotted lines at 6 and 8 seconds\n",
    "d.append(dw.Lines(x_grid[1],Midi(69),x_grid[7],Midi(69),x_grid[7],y_grid[4],\n",
    "                  fill='none',stroke='gray',stroke_dasharray='3 3'))\n",
    "d.append(dw.Lines(x_grid[15],Midi(69),x_grid[23],Midi(69),x_grid[23],y_grid[4],\n",
    "                  fill='none',stroke='gray',stroke_dasharray='3 3'))\n",
    "\n",
    "d.savePng('01-GS-05-c.png')\n",
    "d"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "wooden-penalty",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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